Dumping-truck.



l". E. QUEENEY.

DUIVIPING TRUCK.

APPLICATION man AUG.3. 1915.

Patented Oct. 3, 1916.

lnverwtor: Frank EQueeneg,

UNITED 1r-Ars Tsai orion.

.FRANK E. QUEENEY, OF NEW YORK, N. Y., ASSIGNOR T0 GENERAL VEHICLE COMPNY INCORPORATED, A. CORPORATION 0F NEW YORK.

DUMPING-TEUCK.

Specification of Letters Patent.

ltatentcd ct. 3, 1916 lie it known that l, Fit-xxx E. Qnunxnr, a citizen of' the United States. residing at New York. in the county of Queens, State of New York, have invented certain new and usulul ln'iprovements in Dumping-Trucks, ot which the i'iillowiug is a specification.

The present invention relates to dumping trucks which employ an electric motor and suitable mechanism for raising and lowering',r the body. and it has for its object to provide a controlling mechanism for the motor which is operated by the movements ol. the. body at its extremes.

For a consideration ot' what 1 believe to be. novel and my invention, attention is directed to the accompanying specification and the claims appended thereto.

ln the accompanyingdrawing Figure 1 is a side elevation of' a truck embodying my invention; Fig. 2 is a face view of' a reversing switch; Fig. 3 is a side elevation thereof, and Fig. ai is a wiring diagram of the hoisting motor. its controller, and the reversing switch. 1'

Referring to Lthe drawing, 5 indicates the chassis of a` truck upon which is mounted the body 6. This body is suitably hinged at its rear end and is adapted to be raised to the elevated position shown in dotted lines by means of an electric hoisting motor. The arrangement of the hoisting motor on the truck and its connections to the body for elevating it arenot specifically illustrated in the drawing this forms no part of the present invention. It will be understood that any suitable desired arrangement may be used. The hoisting motor is preferably of the series type and is diagrammatically shown in Fig. 4,'Wherein 7 indicates the armature and 8 the series field. 9 is the controller for the motor. lt comprises two distinct sets of drum contacts 10 and 11, set 10 being used to regulate the motor for raising the body and set 11 for lowering it, and the fixed contacts 12. 12a indicates the starting resistance. The motor field is connected to the controller through a reversing switch 13 which ,is operated by the movements of the body in being raised and lowered to automatically reverse the motor field and also toy disconnect the eld from the one side of the controller and connect it to the other. It comprises a base 14 upon which are mounted the two set-s of contacts 15 and 1S which are utilized in raising the body, and the two sets ot' contacts 17 and 18 which are utilized in lowering the body. The respective contacts of.' each set are adapted to be bridged by contacting members 19 and 20 carried by a central hub 21 of insulating material, as liber. which is pivoted on a spindle fixed tothe base 14. The contacting members have ltwo positions; one where they bridge contacts 15 -and 1G as shown in Fig. 2, and the other where they bridge contacts 1T and 1S as shown in Fi il. They are moved from the o ne position to the other by a weighted arm 225 which oscillates on the spindle 22 and carries projecting lugs 2% which engage members 19 and. 20 on opposite sides of the spindle.I 25 indicates ar suitable weight on the arm The weighted arm is moved from one side of the vertical to the other by the cars 26 and 27 carried by an actuator, in this illustration a plate 28 pivotcd on the spindle 22. and said plate has a short arm 29 in which is fastened a stud 250 loosely engaging in a slot 31 in a link fixed to the truck body. This forms a lost motion connection between the truck body and the switch.

Assuming that the body is resting on the chassis and it is desired to elevate it7 the controller 9 is moved in the proper direction to the first point which brings the drum contacts 10 for raising the body into engagement with the fixed. contacts 12. The reversing switch will be standing in the position shown'in Fig. 2, the sets of contacts 15 and 1G being bridged. Current will flow l'ron'i the source of' energy (as a storage battery on the truck) through lead wire 35, drum contacts 40, conductor 4h contacts 16, conductor 42, series field 8, conductors and 43A, contacts 15, conductor fi-l, drum contact 115, drum contact 6, starting resistance 12e, armature 7, and lead wire 48, back to the source. ylhis will start the motor and the controller will be moved in successive steps to gradually cut out the starting resistance 12l1 as is well understood. As the body moves upward link 32 moves therewith and finally the lower end of the slot 31 engages the stud 30 and begins to turn the plate 28, causing ear 26 thereon to engage the weighted arm 23 and move it in an anti-clockwise direction. The lost motion connection between the body and the switch is so timed that just as the body reaches the desired limit of the :s movement 2L-he weigh ed beyond the vertieeh 2d ihereoi engaging 'the swibeh e' L forcing i to :i posiiion to reverse me .1 tions. The switch eheh essuiries he sion shown in 4r. This action stops motor ,vi'houib regard io `bhe 'posiioi of eontroiier. The ooii'zroiier he then 'd to ehe oil or heutrei position, or the or may 'wfiii beiore doings@ .until ready Le motor in @he opposie direction.. Tiflheii in is desired. eo lower fthe body ehe movemeo; of the eoirroiier is reversed, the drum eoiitoets 11i. for iower` ehe body being brought into engagement with the fixed 121 Gurn-:n new ows from source through ieed wire 35, drum eoiiteei; 5d.; drum of 5i, conductor 52, ooii'ees if?" eoudiieoi series ehfi S3 eouduetors 45:?, (L d d2, ooriaes id, eouduogor drum eenW met 51., dro AA eoiivee soriing resistance 15.2, armature 'if and leed wire 48 beck to the source o" energy. The conroier will their oe turned to gradually out ouiI the starting resisiehee. -When the body reaches its iov/ered positionM the link Hrviii oper te eo reverse ehe swieeh throwing ii from the posi- JLion es sl'io'wii in Fig. i beek. to that shown in Figs. l and 2, in the remmer already described eeep; that it is in the .reverse direcion. ihis reverses fleid oi he motor and ai same 'ime disconnects he iov/er" ing eorieei-s of' eeiiroiier and yeoimeets he elevating eoiitaes. The body @im then e again elevated when desired The above errazogeiiieh has for one of is priipei edvaheges that the operator needs only to 'turn his oontroiier ou to elevate or iovver 4she body, end does nos here to taire eere io out it oid again, the svi'teh autonizitioaiiy cuis off 'ehe power and reverses 'the svvieeh es soon 4'she body reaches either ero ireme position., This insures that ehe operator Wili not eereiessiy elevate the body too {ai} or that he willY no'- to elevate it 'forther when he intends to iower it. -.er ehe body is `once elevated ifa is possible only 'to iowei'je, @Wing eo the eutoumtie interiu tion of the eieetrio oireui b after 'ghe mot-or has done its 'Work both iii lifting md ioweiiisg, sii danger burning ouh the eeetriezii spperaaus or injuring -the battery is elimiiieed. By having 'die vehieie body control manner stated one :roeien operetor is avoided 1,. *fig swich. it :uso iiiiug properly Closedv lhus oi eeeideuis. yEhe zip L her reie'iveiy simple and easy :eep iu. operating condition, is f...-oroughiy reiiabie in opernion.

oi operzraion of my invention, together with the apparatus which now consider 'to represent fhe best embodiment thereof; but; i desire so have it understood that. the zipperu'eus shown is only iiiustralrtive, and zhat ehe invention een he carried out by other means.

.f et claim es To by Leiers ideeut oi' Shares7 is i-- i. in o truck,I the. ec of a Chassis, e body hereon edepwd to he elevated, :im eieotrie motor for eievutiug :ind lowering the body, e controller for the motor having two seis oi eoninots on its drum, one for controiliug the moor eo elevate the body and oiher 'for controlling the motor to iower ehe body, :i reversing switch through which J(he controller eoiiueoed "uo the motor, said .witch :Loting to reverse 'ghe motor {ieid and also to connect in one .et of drum contacts and disconnect the other, and. ineens con meeting' the body and switch 'for operating `ihe switch when the body reaches the ex- 'rremes of its iuoveinehis.

2. The oombinatiou 'with n truck having a. body which is `adapted "no be ehavated7 of am electric motor for eievatiug it, e controller ior ihe uioor having mvo sets of Contacts on is drum, one for Controlling the motor to elevate the body and the other ior courroiiiiig the motor to iower the body, e reversing switch `chrough which the eontroiier is eoilnected to 'the motor, said switch acting to reverse the uioior .ieid and also to connect in one set of drum eontees zuid disconnect Jehe other, en operating erm for ehe switch, and n. ios motion Connection between ehe erm and body for reversing bhe sfiteh when 1he body reaches the extremes oi its iuoveoiens.

in Witness whereof, i have hereuirao sei; my hand this 31st dey oi' July, i915.

to secure FRAN H s. epesses 

